# Quick Introduction - 15 min with Debra Horn CPA

> A relaxed fifteen minutes. You tell me what's going on, I ask a few questions, and I tell you honestly whether I'm the right fit. Nothing to prepare and no documents needed. Please don't send Social Security numbers, account numbers, or tax documents by email. Once we've talked I'll set you up on my secure client portal.

- Host: Debra Horn CPA
- Duration: 15 min
- Location: Zoom Video
- Host time zone: America/Los_Angeles
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/debra-horn-e0zubx/15min
- Event type id: 5416104

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=5416104&start=YYYY-MM-DD&end=YYYY-MM-DD&timeZone=<IANA time zone>
cal-api-version: 2024-09-04
```

The response is `{"data":{"YYYY-MM-DD":[{"start":"<ISO 8601 with offset>"}]}}`; no API key is needed.

## Book

```http
POST https://api.cal.com/v2/bookings
cal-api-version: 2026-02-25
Content-Type: application/json

{
  "eventTypeId": 5416104,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "title": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `title` (What is this meeting about?)
- Optional fields: `notes` (Additional notes), `guests` (Add guests)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.